bids are invited for custom bid for services - mechanized interior cleaning of coaches mcc of primary secondary trains at an average of 205 coaches per day round the clock at sbc coaching depot for a period of 4 years , custom bid for services - mechanized exterior cleaning of coaches mcc of primary secondary trains at an average of 205 coaches per day round the clock at sbc coaching depot for a period of 4 years , custom bid for services - mechanized cleaning watering of pftr trains at coaching depot sbc for a period of 04 four years at an average of 454 coaches per day , custom bid for services - cleaning of pitlines catwalks aprons etc and desilting of all the pitlines continuously round the clock and cleaning of ioh shedsickline cdooffice other service buildings at coaching depot sbc for a period of 04 years , custom bid for services - watering of nominated passthrough trains at sbc stations for a period of 04 years , custom bid for services - gst at 18 percentage of total quoted value of schedule 1 to 5 total quantity :